Patent US 4148042A
| Patent number | US 4148042A (click link for details and documents via Google Patents) |
|---|---|
| Title | Electrographic copier with one-piece belt and styli |
| Inventors | Jon C. Mutton, Peter J. Unger |
| Company | Tektronix Inc |
| Filing date | 1977-11-11 |
| Grant date | 1979-04-03 |